Improved method of constructing fruit-jars



UNITED STATES PATENT EETQE.

GEORGE M. RAMSEY, OF NEWV YORK, N. Y.

IMPROVED METHOD OF CONSTRUCTING FRUIT-JARS.

To all whom it may concern:

Be it known that I, GEO. M. RAMsEY, of the city, county, and Stateot'New York, have invented a new and Improved Air-Tight or Air-Excluding Jar, of which the following is a specification.

To enable others to make and use my improved jar, I will proceed toclearly and fully describe its construction.

Figure 1 is a top view of the mouth of the jar, representing an ovalmouth. Fig. 2 is a vertical section taken through the center,representing the neck gradually contracted and smallest at the mouth orbrim A. Fig. 3 is the lid of thejar as seen on its under surface.

The neck B of the lid (see Fig. 2) is made oval in shape, and is made ofequal size and shape of the mouth of the jar at its smallestmeasurement, so as to enter the mouth of the jar easily. The cap 0 ofthe lid (see Fig. 2) may be made a true circle. The edge B of the lidmay be formed so as to conform to the inner side of the mouth or neck ofthe jar.

Thejar and lid being constructed thus, it is evident that it the neck ofthe lid is inserted into the mouth of the jar the cap 0 will rest on thebrim A, and by twisting or turning the lid in either direction, so as tobring the long diameter of the lid toward the short diameter of themouth of the jar, that the lid will look within the mouth or neck of thejar, and that the inclination of the inner surface of the neck of thejar will cause the cap of the lid to be pressed down upon the brim ofthe jar with a degree of force equal to or in proportion as. the longdiameter of the lid is forced or twisted toward the short diameter ofthe month of the jar, and thus make an air-tight joint between the brimA of the jar and the cap 0 of the lid.

It may be found necessary in some cases to interpose a strip of packingbetween the neck of the lid and the edge of the jar, to provide forexpansion and contraction.

When the connecting-surfaces of A and c are not made true by grinding orotherwise, it will be necessary to interpose a strip of packing betweenthe same.

The oval-mouth principle may be modified and made available by expandingthe mouth (see Fig. 6) and making a shoulder on the outer side. The lidwould then require a rim as deep as the neck of the jar is long, and theinner side of the rim would require to be molded or turned out, so as toconform somewhat to the outer surface of the neck of the jar; or theshoulder may be dispensed with in the expanded month by making the brimof thejar and the inner and under surface of the lid to come in contact.(See Fig. 7.) Again,the lid may be made to go entirely within the neckof the jar. (See vertical sections, Figs. 4 and 5.)

V hat I claim, and desire to secure by Letters Patent of the UnitedStates, is

The oval or elliptic mouth and oval or elliptic lid, substantiallyin themanner and for the purpose herein described, and shown in Figs. 1 to 7,inclusive, together with the letters of reference marked thereon.

GEO. M. RAMSEY.

